GCC 8.x is required to avoid the following error:
cc1plus: error: -Werror=class-memaccess: no option -Wclass-memaccess
If we build without "-Wno-error=class-memaccess" the build should fail
and the upstream requirements were raised from GCC 7 to GCC 8 anyway:
b2f821d3de
The two additional patches are required to avoid build errors like this:
/build/source/Telegram/ThirdParty/qtlottie/src/bodymovin/bmbase.cpp:123:12:
error: invalid use of incomplete type 'class QDebug'
qWarning()
^
In file included from
/nix/store/1qk60bhxcf95iicms7mkyjq3h7lz136p-qtbase-5.12.0-dev/include/QtCore/qglobal.h:1200,
from
/nix/store/1qk60bhxcf95iicms7mkyjq3h7lz136p-qtbase-5.12.0-dev/include/QtCore/qalgorithms.h:43,
from
/nix/store/1qk60bhxcf95iicms7mkyjq3h7lz136p-qtbase-5.12.0-dev/include/QtCore/qlist.h:43,
from
/nix/store/1qk60bhxcf95iicms7mkyjq3h7lz136p-qtbase-5.12.0-dev/include/QtCore/QList:1,
from
/build/source/Telegram/ThirdParty/qtlottie/src/bodymovin/bmbase.h:31,
from
/build/source/Telegram/ThirdParty/qtlottie/src/bodymovin/bmbase.cpp:29:
/nix/store/1qk60bhxcf95iicms7mkyjq3h7lz136p-qtbase-5.12.0-dev/include/QtCore/qlogging.h:57:7:
note: forward declaration of 'class QDebug'
class QDebug;
^~~~~~
This was needed for my webcam to work with zoom-us. v4l2convert is a
wrapper for apps that only support simple bgr24 or yuv420. For these
apps to support webcams that don’t use those formats, we need to use
LD_PRELOAD to get those symbols. Taken from archlinux wiki:
https://wiki.archlinux.org/index.php/Webcam_setup#V4L1_support
A recent upgrade of cargo-vendor changed its output slightly, which
broke all cargoSha256 hashes in nixpkgs.
See https://github.com/NixOS/nixpkgs/issues/60668 for more information.
Since then, a few hashes have been fixed in master by hand, but there
were a lot still to do, so I did all of the ones left over with some
scripts I wrote.
The one hash I wasn’t able to update was habitat's, because it’s
currently broken and the build doesn’t get far enough to produce a
hash anyway.
This is technically not needed as the changes only relate to appstream packaging
but as we are rebuilding it anyway due to libqmatrixclient changing, we might as
well.
`updateScript` lets us update packages automatically.
For packages that are hosted on the gnome mirror it's very easy to add
that. Inspired by https://github.com/NixOS/nixpkgs/issues/36150
